【正文】 s melon?An ovalshaped bone that lets the dolphin hear soundsAn organ made of fat tissue that helps a dolphin send sound wavesAn airfilled cavity that lets the dolphin breathe underwaterAn organ filled with water that helps the dolphin measure depth26. What is the dolphin39。s attitude toward the results from medical research on snake venom proteins?She is enthusiastic about the drugs that have been tested to date.She is concerned about the side effects of drugs created from snake venom proteins.She doubts that the DNA database will be useful in developing new drugs.She thinks it is too early to tell how successful the research will be.TPO 22 Lecture 323. What is the lecture mainly about39。s habitat range has expandedTo describe the functioning of the circulatory system of the North American wood frogTo introduce students to an unusual phenomenon affecting North American wood frogs30. Why does the professor first mention the arrival of spring?To encourage students to look for thawing wood frogsTo point out the time period when frogs begin matingTo explain why the class will soon be doing experiments with wood frogsTo emphasize the speed of the thawing process31. What happens to a wood frog as it begins to freeze?Blood is concentrated in the center of its body.Blood stops producing sugarWater moves out of its internal organs.Water from lust beneath the skin begins to evaporate32. What are two points the professor makes about the thawing process of the wood frog? Click on 2 answers.The thawing process is not fully understood.The thawing process takes longer than the freezing process.The frog39。 To refer to a wellknow misconception about reptiles178。 Deposing leaves form layers that prevent sunlight from warming the ground below the leaves.178。 Microclimates can be both helpful and harmful to reptiles.178。 Studying squirrels has helped biologists identify different microclimates.178。 The size of the animal population in the area178。 Difficulties animals have in regulating their body temperatures178。s concernl To agree with the studentTPO4 Lecture 16. What is the lecture mainly about?A. Method s of observing unusual animal behavior.B. A theory about ways birds attract mates.C. Ways animals behave when they have conflicting drives.D. Criteria for classifying animal behaviors.7. Indicate whether each of the activities below describes a displacement activity.Click in the correct box for each phrase. Yes No An animal attacks the ground instead of its enemy. An animal falls asleep in the middle of a mating ritual. An animal eats some food when confronted by it enemy. An animal takes a drink of water after grooming itself.8. What does the professor say about disinhibition?A. It can prevent displacement activities from occurring.B. It can cause animals to act on more than one drive at a time.C. It is not useful for explaining many types of displacement activities.D. It is responsible for the appearance of seemingly irrelevant behavior.9. According to the lecture, what is one possible reason that displacement activities are often grooming behaviors?A. Grooming may cause an enemy or predator to be confused.B. Grooming is a convenient and accessible behavior.C. Grooming often occurs before eating and drinking.D. Grooming is a mon social activity.10. Why does the professor mention the wood thrush?A. To contrast its displacement activities with those of other animals species.B. To explain that some animals display displacement activities other than groomingC. To point out how displacement activities are influenced by the environment.D. To five an example of a n animal that does not display displacement activities.11. Replay: What does the professor mean when she says this?A. She is impressed by how much the student knows about redirecting.B. She thinks it is time to move on to the next part of this lectures.C. The student’s answer is not an example of a displacement activity.D. The student should suggest a different animal behavior to discuss next. TPO7 Lecture 210. what is the lecture mainly about?l How animals emit ultrasonic pulsesl How bats use acoustical signalsl A parison of echolocation and radarl Variations among bats in the use of ultrasound11. why does the professor decide NOT to add more information to the diagram on the board?l She wants students to plete the diagram themselves as an assignmentl She needs to look up some information in order to plete the diagram accuratelyl The additional information is not relevant to the topic that she wants to discuss nextl Students already have the additional information in their textbook12. According to the professor, what are two ways in which a moth might react when it detects the presence of a bat?Click on 2 answersl The moth might stop beating its wingsl The moth might emit highfrequency soundsl The moth might leave the areal The moth might change its color to match its surroundings13. What surprising information did a recent experiment reveal about lesser spearnosed bats?l They filter out echoes from some types of treesl They can analyze echoes from stationary objects with plex surfacesl They cannot analyze jagged echoesl They cannot analyze echoes from certain types of small moving objects.14. According to the professor ,why does a pine tree produce a smooth echo?l Because it has a smooth trunkl Because it has large branches spaced at regular intervalsl Because it has many small, densely packed needlesl Because it remains stationary in all types of weather15. Why does the professor say this()l To answer a question that Carol askedl To correct a statement that Carol madel To praise Carol for an example that she gavel To give an example of a principle that Carol statedTPO8 Lecture 1 1. Wh